debacle
de.ba.cle \di-'ba:k-*l, -'bak-\ n [F de`ba^cle, fr. de`ba^cler to unbar, fr. MF desbacler,]fr. des- de- + bacler to bar, fr. OProv baclar, fr. (assumed) VL bacculare, fr. L baculum staff - more at BACTERIUM 1: a tumultuous breakup of ice in a river 2: a violent disruption (as of an army) : ROUT 3: BREAKDOWN, COLLAPSE